Rubber and plastic characteristics are combined in a class of materials known as polyolefin elastomers, or POEs. Polyolefin Elastomers: What Are They? Polyolefin elastomers are copolymers based primarily on ethylene and α-olefins such as butene or octene. Metallocene catalyst technology is used in their production, giving exact control over the polymer structure. POEs provide a unique harmony of strength, flexibility, and processability between plastics and rubbers.

POE grades

GRADE PRODUCER MFR (gr/10min) DENSITY DATASHEET
POE LC565 LG 5 0.865 download

Key Properties of POEs

POEs (Polyolefin Elastomers) offer a unique blend of properties that make them valuable in various applications. Here’s a breakdown of some key characteristics:

Mechanical Properties

  • Elasticity: POEs are very elastic, stretching and returning to their original shape. Therefore, they can be used in applications that need to be resilient and flexible.
  • Strength: They can sustain moderate weights without breaking and have a decent tensile strength.
  • Impact Resistance: Depending on the kind and quantity of catalyst utilized, POE’s impact resistance varies. It functions best at room temperature in general, but at extremely low temperatures, it may fracture.

Chemical characteristics

  • Chemical Resistance: POEs are appropriate for applications exposed to harsh conditions because of their excellent resistance to various chemicals and organic solvents.
  • Weatherability: They provide a respectable defense against ozone and UV rays, which cause weathering.

Additional Features

  • Lightweight: POEs are a viable option for applications where weight is an important consideration because of their low density, which makes them lighter than many other elastomers.
  • Processability: POEs can be easily processed using standard plastic processing methods, such as injection molding and extrusion.
  • Recyclable: A large number of POEs can be recycled, which helps with material choice and sustainability.

POE’s limitations

  • Temperature Resistance: POEs typically have a lower maximum temperature resistance (about 80°C) than specific other elastomers.
  • Friction: POE may not be the best choice for applications requiring low friction due to its potentially high coefficient of friction.

It is essential to comprehend these characteristics when choosing POEs for certain applications. The kind and quantity of compounds employed in the POE can greatly influence its properties, making it adaptable to a range of applications.

Benefits of POE

  • Versatility: POEs have various features that can be adjusted to suit specific uses.
  • Processing simplicity: Standard thermoplastic processing tools can be employed to handle them.
  • Recyclability: POEs are recyclable because they are thermoplastics.
  • Cost-effectiveness: POEs provide an excellent balance between performance and cost in many applications.

POE applications

Numerous sectors and applications make use of polyolefin elastomers, such as:

  • Automotive: Used in weatherstripping, belts, hoses, and parts inside and outside the vehicle.
  • Packaging: Used in adhesives and flexible packaging.
  • Footwear: Used to apply foam to insoles and shoe soles.
  • Construction: Used in flooring and roofing membranes.
  • Consumer goods: These are included in a range of extruded and molded goods.
  • Cable and wire: Used as jacketing and insulation materials.
  • Impact modification: Polypropylene (PP) polymers benefit greatly from POEs’ outstanding impact modification, which increases their toughness and low-temperature performance.

In contrast to Other Elastomers

POEs differ from thermoplastic elastomers (TPEs), such as styrene block copolymers, in a few key ways.

  1. POEs are more resilient to oxidation and UV light.
  2. TPEs are often more impact-resistant at low temperatures.
  3. POEs work better with polyolefins, such as polypropylene, since fewer are needed to produce comparable toughening effects.
  4. TPEs provide superior flexibility at low temperatures and a more excellent range of hardness levels.

Conclusion

Polyolefin elastomers (POE) have emerged as a versatile class of thermoplastic elastomers, combining the desirable properties of polyolefin plastics and elastomers. Their excellent flexibility, chemical resistance, and ease of processing make them suitable for various applications across diverse industries. With the ability to tailor their properties and leverage recyclability, POEs offer an attractive alternative to traditional vulcanized rubbers. As demand for high-performance and environmentally friendly materials continues to grow, POEs are poised to play an increasingly prominent role in numerous applications.